Union Pension Plan - Summary of Multiple Employer Pension Plans (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Multiemployer Plans [Line Items]
Entity Tax Identification Number	83-2583782
Contributions by Company	$ 6.4	$ 5.9	$ 4.8
Midwest Operating Engineers Local Union No. 150 Pension Trust Fund
Multiemployer Plans [Line Items]
Entity Tax Identification Number	36-6140097
Pension Protection Act Zone Status	Green	Green
Pension Protection Act Zone Status	Mar. 31, 2024	Mar. 31, 2023
Contributions by Company	$ 3.0	$ 2.8	2.4
Surcharge Imposed	No
Expiration Date of Collective-Bargaining	May 31, 2027
Operating Engineers Local Union No. 324 Pension Fund
Multiemployer Plans [Line Items]
Entity Tax Identification Number	38-1900637
Pension Protection Act Zone Status	Red	Red
Pension Protection Act Zone Status	Apr. 30, 2024	Apr. 30, 2023
FIP/RP Status	Implemented
Contributions by Company	$ 1.7	$ 1.6	1.2
Surcharge Imposed	Yes
Expiration Date of Collective-Bargaining	Sep. 30, 2027
All Other Multiemployer Pension Plans
Multiemployer Plans [Line Items]
Contributions by Company	$ 1.7	$ 1.5	$ 1.2

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

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Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan.

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Expiration date of collective-bargaining arrangement (CBA) requiring contribution to multiemployer pension plan determined to be individually insignificant, in YYYY-MM-DD format.

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Indicates whether funding improvement plan or rehabilitation plan was implemented or pending for multiemployer pension plan, determined to be individually insignificant. Acceptable values are "No", "Pending", "Implemented", "Other", and "NA".

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Indicates certified zone status of multiemployer pension plan determined to be individually significant. Acceptable values are "Green", "Yellow", "Orange", "Red", "Other", and "NA".

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Indicates whether employer paid surcharge to multiemployer pension plan determined to be individually significant. Acceptable values are "No", "Yes", and "NA".

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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